"As the thing progressed, more and more people wanted in, from the captain to the company representative—the rest is history!" Flynn told MailOnline.

Subsea 7 is a seabed-to-surface engineering, construction and services contractor for the offshore energy industry. The company manages and operates a fleet of 40 vessels.

Karaoke Camaraderie

Flynn said the workers filmed one scene per day over four weeks, often having to re-shoot to get the scenes just right. (Check out the outtakes at the end of the video.)

"Everyone was keen to get involved, and the ideas were always flying around the rec rooms in the evenings," Flynn said, adding: "Everyone on the boat has been humming the tune for the last month, too."

A company spokesman for Subsea 7 told the Evening Express that the video was a great example of the crew's camaraderie.

"The nature of our business means offshore people spend several weeks on board a vessel, living and working together with colleagues 24 hours a day. Our company values include collaboration and innovation and the team behind this have demonstrated both—it's what we call 'Being 7.'"